Hi @HBWaninara
Quickest way to resolve is to take a packet capture on the MX whilst trying to Vpn in. You should then see a step by step setup of the vpn and where it’s failing.
Darren OConnor | doconnor@resalire.co.uk
https://www.linkedin.com/in/darrenoconnor/
I'm not an employee of Cisco/Meraki. My posts are based on Meraki best practice and what has worked for me in the field.